جست‌وجوی استاد و پژوهشگر

Tim Vogelمشاهده پروفایل

پژوهشگر

• Terahertz (THz) Generation
• High-Power Lasers
• Ultrafast Optics
• +۳ مورد دیگر

Tim Vogel is a PhD candidate at Ruhr-University Bochum's Faculty of Electrical Engineering, affiliated with the Photonics and Ultrafast Laser (PULS) group. He holds B.Sc. and M.Sc. degrees in Physics from Heinrich-Heine University Düsseldorf. His research focuses on high-power terahertz (THz) generation and optimization of THz-Time Domain Spectroscopy (THz-TDS), with a particular emphasis on developing high-average-power THz sources using advanced materials like lithium niobate and organic crystals (e.g., BNA and MNA). His work includes innovations in tilted-pulse-front geometry, air-plasma emitters, and cryogenically cooled systems to enhance THz output power and spectral range. Education: B.Sc./M.Sc. in Physics, Heinrich-Heine University Düsseldorf (thesis: laser plasma setup and gravitational wave detector mirror characterization) PhD candidate at Ruhr-University Bochum (started 2019) His research interests include ultrafast laser technology, THz source scaling, and applications in spectroscopy and imaging. Key contributions include achieving record average powers (643 mW) in single-cycle THz sources and designing high-dynamic-range THz-TDS systems. He actively presents at conferences like CLEO and IRMMW-THz, focusing on advancements in THz generation and instrumentation. His publications span topics such as organic crystal-based THz emitters, spintronic THz sources, and lensless THz imaging. Current work emphasizes cryogenic cooling solutions, GHz-repetition-rate lasers, and next-generation THz spectrometers for industrial and scientific applications.

• Gravitational Waves
• General Relativity
• Compact Binaries
• +۴ مورد دیگر

Dr. Jan Steinhoff is a Group Leader leading the research group Astrophysical and Cosmological Relativity at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Potsdam. He holds a diploma in Physics (2006) and PhD (2010) from Friedrich-Schiller-Universität Jena, with doctoral research on canonical formulations of spin in general relativity under Prof. Gerhard Schäfer. Following postdoctoral positions at Instituto Superior Técnico (Lisbon) and AEI, he established his independent research group in 2019. His primary research focuses on analytical predictions for compact binary dynamics and gravitational wave emissions. Key areas include: Spin-induced spacetime twisting and orbital precession effects Tidal deformation and oscillation modes in neutron stars Deviations from Einstein's gravity in gravitational wave signatures Effective field theory frameworks for binary systems Waveform modeling (especially effective-one-body approaches) Steinhoff's publications demonstrate consistent focus on analytical relativity methods applied to gravitational wave astrophysics. Recent work emphasizes: Tidal interactions in neutron stars within modified gravity theories High-precision post-Newtonian calculations Waveform development for next-generation detectors Tests of general relativity using LIGO-Virgo observations He leads the AEI's efforts in developing perturbative solutions to gravitational two-body problems, leveraging synergies with high-energy physics techniques including scattering amplitudes and effective field theories.

Rudolf Widmer-Schnidrigمشاهده پروفایل

پژوهشگر

• Low-Frequency Seismology
• Planetary Interior Structure
• Mars Geophysics
• +۳ مورد دیگر

Rudolf Widmer-Schnidrig is a Researcher at the Institute of Geodesy within Faculty 06 at the University of Stuttgart. He is affiliated with the Black Forest Observatory (BFO) , where he specializes in low-frequency seismology to study Earth's mantle and core structure through elasto-gravitational free oscillations. His work extends to analyzing data from the InSight mission on Mars, contributing to understanding planetary interiors and Martian atmospheric processes. Recently, he has explored signatures of compact dark matter objects using terrestrial gravimeter data. Research focuses include seismic sensor calibration (e.g., DAS systems), atmospheric-seismic interactions, and long-period Earth oscillations. He has been instrumental in testing seismometers for Mars missions and interpreting InSight's seismic/meteorological data. His collaborative efforts span global seismology networks and interplanetary geophysical comparisons. Publications highlight innovations in sensor technology, Mars regolith characterization, and detection of rare seismic phenomena like 9-day Greenland fjord tsunamis. While no formal awards are listed, his contributions to planetary science and gravitational wave research are notable.

Stefan Dreizlerمشاهده پروفایل

استاد

• Stellar Astrophysics
• Stellar Atmospheres
• Extra Solar Planets
• +۳ مورد دیگر

Prof. Stefan Dreizler is a Full Professor of Astrophysics at the University of Göttingen's Faculty of Physics, leading the Institute of Astrophysics. He holds a Physics Diploma from Kiel University (1989), followed by a PhD (1992) and Habilitation (2000) in Astrophysics. His career includes DFG fellowships, postdoctoral roles at Erlangen-Nuremberg and Tübingen, and a 2007–2009 tenure as Dean of the Faculty of Physics. He received the 2010 Robert Bosch Award and became a Göttingen Academy of Sciences member in 2016. Research focuses on Stellar Astrophysics , Stellar Atmospheres , Extra Solar Planets , and Astronomical Instrumentation . Recent work includes exoplanet detection via the CARMENES survey, studies on Proxima Centauri's habitable zone planets, and analyses of planetary systems around M dwarfs. He contributes to projects like PHOENIX stellar atmosphere models and transit timing variations. Publications highlight discoveries such as Teegarden’s three-planet system (2024) and a black hole candidate in NGC 3201 (2018). He collaborates internationally through initiatives like RedDots and leads the GGNB’s Physics of Biological and Complex Systems program.

Melissa Mendesمشاهده پروفایل

پژوهشگر

• Neutron Star Cooling
• Neutron Star Equation of State
• Quark-Hadron Phase Transition
• +۲ مورد دیگر

Melissa Mendes is a Postdoctoral Researcher at the Technical University of Darmstadt's Institute of Nuclear Physics, Theory Center. She holds a PhD in Physics from McGill University (2023) with a thesis focusing on nuclear equations of state and neutron star observations. Her research emphasizes neutron star cooling mechanisms, equation of state dynamics, and signatures of quark-hadron phase transitions. Her work bridges theoretical nuclear physics with astrophysical phenomena, contributing to understanding dense matter properties via multi-messenger observations. Recent studies include collaborations on NICER mission data analysis and chiral effective field theory applications. She has published in high-impact journals like Astrophysical Journal Letters and Phys. Rev. C. Current affiliations include the TU Darmstadt Theory Center and the ExtreMe Matter Institute (EMMI). She is actively involved in computational nuclear physics projects analyzing neutron-rich systems and superfluidity models.

Kostas Kokkotasمشاهده پروفایل

استاد

• Gravitational Wave Astronomy
• Neutron Stars
• Black Holes
• +۴ مورد دیگر

Kostas Kokkotas is a Professor of Theoretical Astrophysics at the University of Tübingen, Germany, leading the Theoretical Astrophysics (TAT) group. He holds an Honorary Professorship at Aristotle University of Thessaloniki. His academic journey includes degrees from the University of Thessaloniki (BSc, PhD) and Cardiff University (MSc). Primary affiliation: Eberhard Karls University of Tübingen (since 2007) Adjunct Professor at Georgia Tech (2010) Former position at University of Thessaloniki (1990–2007) Research focuses on gravitational waves, neutron stars, black holes, and relativistic astrophysics. Notable contributions include studies on quasinormal modes, compact object dynamics, and asteroseismology. Editor of Handbook of Gravitational Wave Astronomy (Springer, 2022). Teaching includes courses on General Relativity, Numerical Methods, and Relativistic Astrophysics. Active in international collaborations like the Einstein Telescope and Laser Interferometer Space Antenna (LISA) projects. Over 200 refereed publications, with recent work on premerger neutron star phenomena and gravitational wave echoes.

Daniela D. Donevaمشاهده پروفایل

استادیار

• Theoretical Astrophysics
• Modified Theories of Gravity
• Gravitational Waves
• +۳ مورد دیگر

Daniela D. Doneva is a theoretical astrophysicist at the University of Tübingen leading an Emmy Noether Research Group dedicated to studying gravitational waves from compact objects as probes of strong gravity and nuclear matter at extreme densities. Her research focuses on theoretical frameworks for modified gravity theories, with emphasis on gravitational wave signatures from neutron stars and black holes. Key interests include: Testing fundamental physics in strong-field regimes Nuclear equation of state at supranuclear densities Alternative gravity models beyond General Relativity Major recognitions include: DFG Emmy Noether Research Group award Membership in the Max Planck Society's Elisabeth-Schiemann-Kolleg since 2021 Her independent research group operates at the University of Tübingen, developing gravitational wave analysis techniques to constrain both astrophysical and theoretical parameters under extreme conditions.

Valeri Hambaryanمشاهده پروفایل

پژوهشگر

• Astrophysics
• High-Energy Astrophysics
• Neutron Stars
• +۵ مورد دیگر

Dr. Valeri Hambaryan is a researcher affiliated with the Astrophysikalisches Institut und Universitäts-Sternwarte at Friedrich-Schiller-Universität Jena, Germany. His work focuses on astrophysics, particularly high-energy phenomena and stellar evolution. Research Interests Neutron stars, supernovae, and runaway stars 60Fe isotopes and galactic cosmic events Flare stars and X-ray astronomy His recent publications (2020–2025) include studies on X-ray binaries, supernova progenitors, and high-velocity stellar dynamics. Articles often involve topics like compact objects, stellar evolution, and galactic archaeology, with keywords spanning astrophysics, stellar astronomy, and high-energy processes. Dr. Hambaryan's email addresses are vvh@astro.uni-jena.de and valeri.hambaryan@uni-jena.de .

Armen Sedrakianمشاهده پروفایل

استاد

• Astrophysics
• Nuclear Physics
• Heavy Ion Physics
• +۴ مورد دیگر

Professor Armen Sedrakian is a distinguished theoretical physicist specializing in the interrelation between particle physics and astrophysics. He currently holds positions as a Fellow at the Frankfurt Institute for Advanced Studies (FIAS) since 2017, Professor at the Department of Physics at Yerevan State University in Armenia since 2011, and teaches at the Department of Theoretical Physics at Goethe University Frankfurt. His academic journey spans prestigious institutions including Max Planck Institute for Nuclear Physics, University of Rostock, Cornell University, University of Groningen, and University of Tübingen where he completed his habilitation on 'Compact stars: Aspects of nuclear and particle physics' in 2006. Dr. Sedrakian's research focuses on the connections between micro and macro worlds, with particular emphasis on astrophysics, heavy ion physics, and nuclear physics. His work spans applications from condensed matter to high-density quantum chromodynamics, particularly in the context of compact stars. His theoretical investigations explore the fundamental nature of matter under extreme conditions found in neutron stars and other compact objects. Professor Sedrakian has made significant contributions to understanding the equation of state of dense matter, superconductivity in neutron stars, and the dynamics of compact star mergers. His research integrates theoretical models with observational constraints from multimessenger astronomy. He serves as an associate editor for 'Particles,' an open access journal published by MDPI, and has been a Foreign Member of the National Academy of Sciences of Armenia since 2014. His recent publications demonstrate cutting-edge research in neutron star physics, including studies on binary neutron star mergers, symmetry energy effects, color superconductivity in quark matter, and relativistic hydrodynamics. These works represent the forefront of theoretical astrophysics and nuclear physics, addressing fundamental questions about matter under extreme conditions. Among his professional distinctions, Professor Sedrakian served as Germany's representative to the 'NewCompStar' COST action from 2014-2017. His research program continues to bridge theoretical physics with observational astrophysics, contributing to our understanding of the universe's most extreme environments.

• High Energy Astrophysics
• Space-Based Astrophysics
• Stellar Evolution
• +۳ مورد دیگر

Andrea Santangelo is a Professor at the Department of Physics, University of Tübingen, affiliated with the Institute for Astronomy and Astrophysics (IAAT) and the Faculty of Mathematics and Natural Sciences. He served as Spokesperson of the Department of Physics and has been active in teaching and research in high-energy astrophysics. His office hours are listed as Wednesday: 12:00-15:00, with contact details including office A222, Sand 1, Tübingen, and phone number 29-76128.

• Gravitational Wave Astronomy
• Laser Interferometry
• Space Interferometry
• +۳ مورد دیگر

Jonathan Carter is a Junior Scientist/Postdoc at the Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) in Hannover, Germany. His research focuses on gravitational wave astronomy, laser interferometry, and space interferometry. He contributes to advanced detector technologies, including optomechanical resonators and inertial sensors, with a particular emphasis on improving precision measurements for gravitational wave detection. His work bridges fundamental physics with experimental engineering, addressing challenges in multi-messenger astronomy and dark matter searches. Key research areas include: Laser interferometry for gravitational wave detection Development of high-Q resonators for precision sensing Analysis of gravitational wave data from LIGO, Virgo, and KAGRA observatories Exploration of ultralight dark matter via gravitational wave signatures Optimization of interferometric systems for space-based applications His recent publications highlight advancements in sensor technology, gravitational wave follow-up studies, and collaborative efforts across global detector networks. While no awards are explicitly listed, his contributions to the LIGO-Virgo-KAGRA collaborations reflect significant impact in the field.

Frank M. Riegerمشاهده پروفایل

مدرس

• High Energy Astrophysics
• Plasma Astrophysics
• Relativistic Phenomena
• +۵ مورد دیگر

Frank M. Rieger serves as a Lecturer at the Institute for Theoretical Physics, University of Heidelberg, and as a senior researcher at the Max Planck Institute for Plasma Physics (IPP) in Garching. He maintains additional affiliations with the Max Planck Institute for Nuclear Physics (MPIK) and participates in the H.E.S.S. Collaboration. His research specializes in: Physics of relativistic compact objects (neutron stars and black holes) Relativistic outflows and jet formation mechanisms Shear particle acceleration in astrophysical flows Non-thermal radiation processes in extreme environments Time domain analysis of gamma-ray emitting active galactic nuclei Rieger actively contributes to major international projects including the Cherenkov Telescope Array (CTA) and supports the 'Extreme Non-thermal Universe' CDY initiative. In 2024, he hosted the ISSS & IPELS Series at IPP in Garching and previously co-organized HEPRO 2023 in Paris. At Heidelberg University, he teaches courses on Theoretical High Energy Astrophysics, Cosmic Particle Accelerators, and Astroparticle Physics, emphasizing the critical interface between theoretical modeling and observational data in advancing astrophysical understanding.

• Astrophysics
• Cosmology
• High-mass stellar evolution
• +۳ مورد دیگر

Ashley Chrimes is a Research Fellow at the European Space Agency (ESTEC) with a focus on explosive transients in high-mass stellar evolution and compact objects. Her work integrates theoretical population synthesis with observational data from host galaxies, transients, and galactic remnants. Key research areas: Gamma-ray bursts (collapsar and compact merger), fast blue optical transients, fast radio bursts, and binary stellar evolution. Ongoing collaborations: STARGATE (GRB follow-up with VLT), ENGRAVE (gravitational wave counterparts), BPASS (binary population synthesis), and Euclid (supernovae/transients working group). Missions involved: Hubble, Gaia, XMM-Newton, JWST, Euclid, INTEGRAL, and Einstein Probe. Additional roles: ESTEC coordinator for LEAPS (Leiden/ESA Astrophysics Program for Summer Students) and organizer of the ESTEC breakfast seminar series.

• Space Astrometry
• Galaxy Dynamics
• Stellar Clusters and Associations
• +۱ مورد دیگر

Jos de Bruijne is an Astronomer at the European Space Agency (ESA), where he serves as a key contributor to the Hipparcos and Gaia space astrometry missions. His work focuses on precision astrometric data processing and scientific exploitation, supporting global research through ESA's archival research visitor programs and graduate trainee initiatives. His research centers on space astrometry for galactic structure studies, with specialized expertise in galaxy dynamics (particularly the Milky Way), stellar clusters and associations (including Hyades, OB associations, and runaway stars), and high-time-resolution optical astronomy using Superconducting Tunnel Junction detectors. His work leverages Gaia's unprecedented positional accuracy to map stellar kinematics, chemical evolution, and dynamical phenomena across diverse cosmic environments. Analysis of his recent publications reveals a dominant focus on Gaia data products, spanning galactic archaeology in the Magellanic Clouds, black hole detection via astrometric wobbles, Solar System dynamics, and interstellar medium studies. The corpus demonstrates systematic exploitation of Gaia's capabilities across stellar, galactic, and extragalactic astronomy, with increasing emphasis on multi-messenger approaches and cross-mission synergies. As a core member of ESA's Gaia team, de Bruijne actively mentors young scientists through graduate trainee programs and archival research collaborations. His operational role involves developing data processing pipelines and documentation standards that enable the global astronomical community to extract maximum scientific value from Gaia's billion-star census. He contributes to mission-critical infrastructure including the Gaia Archive and data quality verification frameworks. Within ESA's Science Operations structure, he participates in mission-critical activities for Gaia's ongoing data releases, working within international consortia to advance astrometric science. His technical leadership in data model specification and product validation ensures the mission's continued impact on fundamental astronomy.

Joachim Koppمشاهده پروفایل

استاد

• Dark Matter
• Collider Physics
• Neutrino Physics
• +۳ مورد دیگر

Joachim Kopp is a Professor for Theoretical Elementary Particle Physics at Johannes Gutenberg University Mainz , currently on leave of absence at CERN . His research focuses on dark matter, collider physics, neutrino physics, and theories beyond the Standard Model, emphasizing phenomenological implications for experiments. He leads the PhenoCOND group , specializing in collider, neutrino, and dark matter studies. Research Interests: Dark matter detection and theoretical models Neutrino oscillations and scattering Collider physics at the LHC and beyond Primordial black holes and cosmological phase transitions Group & Teaching: Supervises PhD students (Lisa Michaels, Lukas Mittnacht) and Master's student Moritz Breitbach Teaches courses on quantum mechanics, quantum field theory, and neutrino physics Affiliations: Member of PRISMA+ Cluster of Excellence Part of the Theoretical High Energy Physics (THEP) Group